SOIL AGGREGATE STABILITY AND AGGREGATE-ASSOCIATED CARBON FRACTIONS UNDER DIFFERENT TILLAGE SYSTEMS OF RICE-WHEAT ROTATION IN NORTH INDIA - TRƯỜNG ĐẠI HỌC Y KHOA VINH
Tìm thấy 10,000 tài liệu liên quan tới tiêu đề "Soil aggregate stability and aggregate-associated carbon fractions under different tillage systems o...":
Conservation tillage impact on topsoil and deep soil aggregation and aggregate associated carbon fractions and microbial community composition in subtropical India: A review
Soil macro-aggregate turnover and micro-aggregate formation: A mechanism for C sequestration under notillage agriculture had its genesis in attempts to identify and isolate soil organic matter (SOM) fractions that reflect the impacts of climate, soil physiochemical properties and physical disturbanc[r]
HƯỚNG DẪN HỌC MICROSOFT SQL SERVER 2008 PART 37 PDF
The ROW_NUMBER() function generates an on-the-fly auto-incrementing integer according to the sort order of the OVER() clause. It’s similar to Oracle’s RowNum column.
The row number function simply numbers the rows in the query result — there’s absolutely no correlation with any physi[r]
The row number function simply numbers the rows in the query result — there’s absolutely no correlation with any physi[r]
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Influence of conservation agriculture practices on biological soil quality
Field experiments were carried out during 2014-15 and 2015-16 to know the effect of different tillage practices and cropping systems on biological quality of soils under rainfed situations.
PRECAST CONCRETE MATERIALS MANUFACTURE PROPERTIES AND USAGE CHAPTER 7 PPTX
7.4.3 Electrical
Before discussing the practical and proprietary systems in use it is a good idea to dispense with some of the myths concerning direct-passage, electrically heating rebars or prestressing tendons. Most of these ideas materialised in the l[r]
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Soil properties under different land use systems in Karimganj district of Assam, India
Geo-referenced composite soil samples were collected from twelve different land use systems (LUS) of the Karimganj district of Assam. The results revealed a wide textural variation ranging from silt loam to clayey in the studied soils. Bulk density was significantly higher (1.48 Mg m-3 ) in uncultiv[r]
Performance of rice cultivars under different methods of tillage operation
A field experiment was conducted during 2011-2012 at the Instructional farm, Uttar Banga Krishi Viswavidyalaya pundibari, Cooch Behar, West Bengal during the Boro season to find out the effect of grain yield of rice cultivars under different methods of rice cultivation (SRI and conventional) at a gi[r]
Estimation of saturated hydraulic conductivity of red and lateritic highland soils under diverse land use systems
Fifteen soil profile samples representing the highlands of Purulia, Birbhum, Bardhaman, Bankura and Medinipur districts in red and lateritic zone of West Bengal were collected from 0-15, 15-30 and 30-45 cm depth under rice-vegetable, rice-mustard and rice-fallow cropping systems with a view to asses[r]
Impact of conservation agriculture on vertical distribution of DTPA-Zinc and organic Carbon of soil
A long-term field experiment was carried out in alluvial soil with conservation agriculture practices like Zero tillage, Permanent bed and Conventional tillage to see the impact on vertical distribution of DTPA-Zn and Organic carbon of soil under rice based cropping systems. After completion of 5th[r]
Productivity and economics of rice-wheat cropping system under irrigation, nutrient and tillage practices in a silty clay loam soil
Field experiments were conducted in two consecutive kharif and rabi seasons of 2013-14 and 2014-15 at A1 block of N. E. Borlaug Crop Research Centre of Govind Ballabh Pant University of Agriculture & Technology, Pantnagar (Uttarakhand) to study the effect of irrigation, fertilizer and tillage practi[r]
DISTRIBUTION OF ZINC FRACTIONS AND ITS ASSOCIATION WITH SOIL PROPERTIES IN SOME RICE-WHEAT GROWING SOILS OF JAMMU REGION, INDIA
Distributions of different zinc (Zn) forms in seven blocks of rice-wheat growing soils of Jammu region were studied. Understanding the Zn distribution in soil is important for efficient and effective management of the fertilizers recourses and to achieve a higher productivity rate. Sequential extrac[r]
Soil quality indicators, building soil organic matter and microbial derived inputs to soil organic matter under conservation agriculture ecosystem: A review
Agricultural intensification is placing tremendous pressure on the soil’s capacity to maintain its functions leading to large-scale ecosystem degradation and loss of productivity in the long term. Therefore, there is an urgent need to find early indicators of soil health degradation in response to a[r]
SOIL ORGANIC CARBON FRACTIONS, SOIL MICROBIAL BIOMASS CARBON, AND ENZYME ACTIVITIES IMPACTED BY CROP ROTATIONAL DIVERSITY AND CONSERVATION TILLAGE IN NORTH WEST IGP: A REVIEW
Soil organic carbon (SOC) and its fractions (labile and non-labile) including particulate organic carbon (POC) and its components [coarse POC and fine POC], light fraction organic carbon (LFOC), readily oxidizable organic carbon, dissolved organic carbon (DOC) are important for sustainability of any[r]
Assessment of mortar’s properties using unground rice husk ash as fine aggregate
This study investigates the application of unground rice husk ash (URHA) as fine aggregate in mortar. Mortar samples, which typically have 0-50% URHA as the total aggregate volume, is prepared to achieve the green development of construction material industry.
Evaluating effect of irrigation, planters and conservation tillage on sugarcane crop under NWPZ conditions after wheat crop harvest
A field experiment was conducted for two consecutive years (2014-15 to 2015-16) at Amroha district of Uttar Pradesh State, India. Different sugarcane planter and conservation tillage practices were tested for intensification and productivity of sugarcane (Saccharum officinarum L.) after wheat harves[r]
Evaluation of soil health and soil quality analysis of different blocks of Bundi district, Rajasthan, India
The present study entitled “Evaluation of Soil Health and Soil Quality Analysis of Different Blocks of Bundi District, Rajasthan, India” was conducted during the 2019-20 in three stages i.e. soil survey and mapping, collection of samples and their analysis for different soil parameters.
STABILITY THEORY OF LARGE-SCALE DYNAMICAL SYSTEMS - EBOOKS AND TEXTBOOKS FROM BOOKBOON
for asymptotic stability in the whole, uniform asymptotic stability in the whole, exponential stability in the whole, and instability of solutions of nonlinear large scale systems under [r]
CROP PRODUCTION TECHNOLOGIES DOC
2.1.2 Wealth and income
According to the Malawi Baseline Livelihood Profiles (MVAC, 2005), wealth in the Kasungu region is heavily reliant on access to food and credit. Households with access to credit are more likely to have a larger land holding from which they can cultiv[r]
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Soil quality under tillage and residue management in jute (Corchorus spp.) based cropping systems of indo-gangetic plains
Conservation agriculture (CA) is based on principles of minimum soil disturbance through zero or minimum tillage operations, residue retention on soil surface and crop diversification which not only improves healthy functioning of soil but also enhances nutrient availability, its biological quality[r]
Conservation tillage and residue management towards low greenhouse gas emission; storage and turnover of natural organic matter in soil under sub-tropical ecosystems: A review
Soil organic carbon (SOC) dynamics in croplands is a crucial component of global carbon (C) cycle. Depending on local environmental conditions and management practices, typical C input is generally required to reduce or reverse C loss in agricultural soils. Changes in the soil organic carbon (SOC) s[r]
Carbon sequestration in dominant soil series under different land uses of Tamil Nadu, India
SOC plays key role in mitigating global climate change and improves land productivity through improved soil properties such as nutrient supply and moisture retention. Studying carbon pools under existing land uses provides baseline data to project C sequestration over time. The present investigation[r]